Building a simple truss
For a shed, porch or playhouse you can build a basic king post truss on a flat jig.
- Calculate lengths using the king post truss calculator.
- Build a jig on flat ground so every truss matches.
- Cut two top chords, one bottom chord and the web member with accurate angles.
- Fasten each joint with construction adhesive and gusset plates or nail plates on both faces.
- Make a test truss, lift it and check fit before you cut the rest.
- Brace trusses as you stand them up, then install permanent bracing.
For any house or occupied building use engineered, stamped trusses. Home-built trusses are only for small, non-habitable structures where code allows.
Read truss design principles and the dimensions guide first.